I just bought a 1997 WR250 2 stroke which is a road registerable (in Aussie) YZ250 with a wide ratio 6 speed and lights. Has had an engine rebuild, all else is stock. I did want to buy a newer bike like 2005 YZ or KTM but couldn't resist this one as they're pretty rare and I can ride a YZ on the road. Question is are there any major upgrades I should make on this bike or are they killer when left as is? It's just for weekend trail riding anyway.